Merge ~oddbloke/cloud-init/+git/cloud-init:warn into cloud-init:master

[Dan Watkins]

replace remaining occurrences of LOG.warn

[Ryan Harper (raharper)]

LGTM

review: Approve

[Server Team CI bot (server-team-bot)]

FAILED: Continuous integration, rev:6797e822959b84c98cf73e02b2a6e3d6ab3fd4fe
No commit message was specified in the merge proposal. Click on the following link and set the commit message (if you want a jenkins rebuild you need to trigger it yourself):
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https://jenkins.ubuntu.com/server/job/cloud-init-ci/706/
Executed test runs:
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    SUCCESS: Unit & Style Tests
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review: Needs Fixing (continuous-integration)

[Server Team CI bot (server-team-bot)]

review: Approve (continuous-integration)

diff --git a/cloudinit/sources/DataSourceCloudStack.py b/cloudinit/sources/DataSourceCloudStack.py
index d4b758f..f185dc7 100644
--- a/cloudinit/sources/DataSourceCloudStack.py
+++ b/cloudinit/sources/DataSourceCloudStack.py
@@ -95,7 +95,7 @@ class DataSourceCloudStack(sources.DataSource):
         start_time = time.time()
         url = uhelp.wait_for_url(
             urls=urls, max_wait=url_params.max_wait_seconds,
-            timeout=url_params.timeout_seconds, status_cb=LOG.warn)
+            timeout=url_params.timeout_seconds, status_cb=LOG.warning)
 
         if url:
             LOG.debug("Using metadata source: '%s'", url)
diff --git a/cloudinit/sources/DataSourceEc2.py b/cloudinit/sources/DataSourceEc2.py
index ac28f1d..5c017bf 100644
--- a/cloudinit/sources/DataSourceEc2.py
+++ b/cloudinit/sources/DataSourceEc2.py
@@ -208,7 +208,7 @@ class DataSourceEc2(sources.DataSource):
         start_time = time.time()
         url = uhelp.wait_for_url(
             urls=urls, max_wait=url_params.max_wait_seconds,
-            timeout=url_params.timeout_seconds, status_cb=LOG.warn)
+            timeout=url_params.timeout_seconds, status_cb=LOG.warning)
 
         if url:
             self.metadata_address = url2base[url]